Police are investigating a traffic accident in which a container truck crashed onto a flyover at Ching Cheung Road and its trailer tumbled over the railings.

The Transport Department said the location is not a blackspot, with only one slight accident in the past 12 months.

The section features an anti-skid surface and is in good condition, with a 50kph speed limit and adequate warning signs and markings.

Both parapets on the flyover are P1-concrete type parapets with metal railings. The parapet on the lower flyover has one top railing and is 1.1m high. The parapet on the upper flyover has two top railings and is 1.25m high.

In the accident, part of the parapet with metal top railings, which was reinforced in 2001, was damaged. Repair work is in progress to reopen the road section before the morning peak tomorrow.